Another cause may be that as most of them are in their late teens to early twenties they look rather boyish.

The expression made him look surprisingly boyish and astonishingly handsome.

I was crazy about his smile, which made him look so boyish and mischievous.

It was Charles laughing up at me from the dew-spotted grass, looking boyish and happy.

Dancing in group works earlier in the evening, he looked short and almost boyish.

His eyes were shining and he looked eager and boyish.

Her face looks pretty boyish as a matter of fact.

George was beginning to be afraid that Berta looked more boyish than she did!

The face looked boyish and frighteningly serious - the eyes were black diamonds.

Marion Sheldon was standing there, looking very slim and boyish.